@misc{indiciae06044e9f5a3e,
  title = {Back controversy.},
  author = {S M McGill and R W Norman},
  year = {1990},
  doi = {10.1093/ptj/70.6.394},
  url = {https://pubmed.ncbi.nlm.nih.gov/2345782/},
  note = {Source identifier: 2345782}
}